<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8" />
    <title></title>
</head>
<body>
<h1 >请登录：</h1>
<form th:action="@{/index}" method="post">
            <div><label> 用户名 : <input type="text" name="username"/> </label></div>
            <div><label> 密  码 : <input type="password" name="password"/> </label></div>
            <div><input type="submit" value="登录"/></div>
        </form>
</body>
</html>